Home / 989,151.84-1,482,645.38-509,408.69

Finding the Fourth Proportional to 989,151.84, 1,482,645.38 and 509,408.69

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Solution

The fourth proportional to 989,151.84, 1,482,645.38 and 509,408.69 is: 763,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,151.84 : 1,482,645.38 = 509,408.69 : x
  2. Step 2: Convert to fraction form
    989,151.84/1,482,645.38 = 509,408.69/x
  3. Step 3: Cross multiply
    989,151.84x = 1,482,645.38 × 509,408.69
  4. Step 4: Simplify right side
    989,151.84x = 755,272,430,800.08
  5. Step 5: Solve for x
    x = 755,272,430,800.08/989,151.84
  6. Step 6: Final answer
    x = 763,555.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.